CN102754262B - Energy conversion apparatus, in particular fuel cell stack or electrolyzer - Google Patents
Energy conversion apparatus, in particular fuel cell stack or electrolyzer Download PDFInfo
- Publication number
- CN102754262B CN102754262B CN201080063055.7A CN201080063055A CN102754262B CN 102754262 B CN102754262 B CN 102754262B CN 201080063055 A CN201080063055 A CN 201080063055A CN 102754262 B CN102754262 B CN 102754262B
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- potted component
- fuel cell
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- 239000000446 fuel Substances 0.000 title description 74
- 239000000126 substance Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 210000004027 cell Anatomy 0.000 claims description 109
- 239000004744 fabric Substances 0.000 claims description 39
- 238000007493 shaping process Methods 0.000 claims description 19
- 210000002421 cell wall Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 5
- 239000007800 oxidant agent Substances 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001080 W alloy Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003915 cell function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
- H01M8/0284—Organic resins; Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- General Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Fuel Cell (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to an apparatus (1) for converting chemical energy into electrical energy and/or electrical energy into chemical energy with a housing (2, 3, 3a), which is open towards at least one side (6) and in which a pressure chamber (4) is formed, and with at least one electrochemically active cell (5) for energy conversion, which extends from the open side (6) of the housing (2, 3, 3a) into the housing (2, 3, 3a), wherein the open side (6) is closed by a plate (7, 31), which holds and/or supplies power to the cell (5). A sealing element (8, 9) is arranged between the housing (2, 3, 3a) and the plate (7, 31), closes the open side (6) of the housing (2, 3, 3a) in a fluid-tight and/or gas-tight manner so as to form the pressure chamber (4) and is formed at least partially from an elastic material. At least one pocket (10) extending into the pressure chamber (4) is formed in the sealing element (8, 9), wherein the cell (5) is positioned in said pocket and the pocket wall (28) of said pocket is flexible as a result of the elastic material, with the result that the pocket wall (28) bears against the cell (5) in the event of an excess pressure in the pressure chamber (4).
Description
Technical field
The present invention relates to a kind of for chemical energy being converted to electric energy and/or converting electrical energy into the device of chemical energy, it has a housing, this housing is at least side is unlimited, and in this housing, be configured with a balancing gate pit, this device also has at least one electro-chemical activity battery for energy conversion, this electro-chemical activity battery extends into housing from the open side of housing, and wherein open side is closed by the plate kept and/or supply battery.
Background technology
This device is known as cell of fuel cell or electrolyser cells unit.Active cell is fuel cell in this case, and chemical energy is converted to electric energy by it, or is electrolyser cells, and it converts electrical energy into chemical energy.The layout that multiple plate battery is adjacent is called and stacks, and is called fuel cell stack or laminated electrolytic tank especially.
In the case of fuel cells, continuously to battery supply fuel and oxidant.When the reaction of two kinds of work materials, generate electron stream, and generating electric energy thus.Each traditional fuel cell generates the low-voltage of about 1.2V at this, but correspondingly, but generate until the relatively high current density of about every square centimeter of active reaction area 3 amperes, wherein, area herein illustrates the size referring to active area in fuel cell.Because this active area such as can have the pole plate being greater than 100 square centimeters of polymer dielectric film (PEM) and this polymer dielectric film that reclines in both sides in the membrane fuel cells in modern times, thus independent this fuel cell at direct voltage for 300 amperes and more electric current can be provided when about 1.2V.Synthesized electric current is cm by unit
2active area and the product of maximum current density form.
Because the direct voltage of 1.2V is concerning all too small the application of a lot of technology, thus in traditional cell of fuel cell the frequent multiple battery of series connection, thus battery voltage to be separately added.Except electricity series connection, the series connection of Supply Structure also can be carried out at this, thus the while of can making fuel and oxidant to the input of a battery and fuel and oxidant from the output battery before be.Cell of fuel cell compact especially can be manufactured in this embodiment.Alternatively also can realize the parallel connection of Supply Structure.
Under normal circumstances, traditional fuel cell has smooth shape, and it has the basal plane being essentially rectangle, thus can by adjacent, parallel for each battery or upper and lower stacked stacking.Form the overall structure of hexahedral shape thus, its size is relevant with area with the number of battery.Each battery is fixed to one another connection in stacking.Such as under damaged condition, in order to single battery is fixedly connected with middle taking-up from such, electrical connection and fuel, the input and output of oxidant and the output of product must be thrown off.Whole fuel cell stack must be dismantled in addition, that is move apart pressing plate, and take bipolar plates apart.At this, the intac film of the battery do not damaged is often destroyed.Correspondingly, single fuel cell can only could be stacked middle taking-up from this with huge technology and time consumption.
Correspondingly, also there is known module type fuel cell and stack, wherein, single fuel cell is arranged in fuel cell vessel removedly, modular.Each fuel cell forms a closed unit at this.
For fuel cell function it is essential that pole plate applies pressure at polymer dielectric film or being arranged on the gas diffusion layers between this film and pole plate.Pressure mainly makes to form necessary electrical contact between pole plate and gas diffusion layers, thus the electronics produced in a fuel cell when making reaction arrives negative electrode.
There is known the different possibilities of build-up pressure.Such as can have been come by the curved surface of pole plate, wherein these curve generatings are the vault of spill.When installing fuel cell, the arris of pole plate connects with being electrically insulated from each other, thus is moved to together by these pole plates.The extruding force desired by curved surface generation of such pole plate.Alternatively, extruding force is by clip, and particularly generated by spring steel clips, this clip is placed on fuel cell from the outside.In addition extrude and also can be formed by hydraulic pressure.Pole plate constructs very thin at this, thus makes it obtain high flexibility.The pressure be applied to from the outside on pole plate then makes pole plate that corresponding distortion occurs, and wherein pressure is delivered on gas diffusion layers.For this reason, the housing of cell of fuel cell forms balancing gate pit, has liquid or gas, be that is generally the medium of pressurized in this balancing gate pit.Fuel cell is laid in a liquid, thus when having overvoltage in balancing gate pit, liquid transfers the pressure on pole plate.This results in the tungsten alloys of battery.
If a fuel cell damaged should be changed in this cell of fuel cell, then need to take this unit apart.Eliminate the overvoltage in balancing gate pit and discharge medium.The fuel cell that then can carry out damaging is replaced.For this reason, in modular system, the replacing of the battery of damage also takes time and effort at technical elements, thus makes the repairing final of cell of fuel cell have higher cost.
Summary of the invention
The object of the invention is to: overcome described shortcoming, and the battery that can realize damaging carry out rapidly and simply changes, thus reducing the corresponding cost of repairs.
Described object is realized by the following device for chemical energy being converted to electric energy or converting electrical energy into chemical energy, this device has a housing, this housing opens wide towards at least side and be configured with a balancing gate pit in this housing, this device also has at least one electro-chemical activity battery for generating energy, this electro-chemical activity battery extends into housing from the open side of housing, wherein open side is closed by the plate kept and/or supply battery, potted component is provided with between housing and plate, the open side of housing is closed to construct balancing gate pit by hydraulic seal, and sealing element is made up of elastomeric material at least partly, and wherein, sealing element has the groove that at least one extends into balancing gate pit, arranging batteries in the cell, and the cell wall of this groove is due to elastomeric material but flexibility, thus make cell wall in balancing gate pit, have overvoltage to recline at present battery.
Basic ideas of the present invention are: for chemical energy is converted to electric energy or by electric energy conversion be chemical energy device in, that is in cell of fuel cell or electrolyser cells unit, the inner chamber of housing is used a component enclosure to construct the room of allowable stress, this component has at least one groove for holding fuel cell or electrolyser cells, wherein, described component is at least flexible in the region of groove, and described groove stretches in described room.This just makes when generating overvoltage in balancing gate pit, and cell wall reclines the battery that is inserted in groove and apply pressure thus on the pole plate of battery.Battery is thus by protective layer, and to a certain extent with the project organization of skin, namely the cell wall of described component surrounds, this protective layer by housing cavity and battery liquid hermetically and be also separated airtightly, described component thus form seal.The housing of described device and seal form closed room jointly, can set up described overvoltage in the chamber.Described room can by liquid filling, and cell wall is pressed to the pole plate of battery by the wall that the overvoltage in described room is delivered to the outside of groove by this liquid.The tungsten alloys of such generation battery or strength extruding.
If damage due to technology and battery should be changed, then also only need to eliminate the pressure in described room now.No longer need to discharge liquid.Battery can be taken out from the groove of potted component in stress-free state, particularly battery be replaced.At this compared to the battery changed in traditional cell of fuel cell or electrolyser cells unit, only need minimum time consumption.
Potted component can remain on the end face of housing at its fringe region at least partly, is fixed especially by least one securing member.At this, potted component is placed on the end face of the open side of the sensing housing of sidewall with its fringe region, there sealing element can by such as bonding, welding or can otherwise fix, can such as by means of framework as securing member, this framework can be threaded connection and is arranged on end face and is pressed on end face by potted component.In this way, housing by potted component hydraulic seal ground and also close airtightly especially, wherein between housing wall and potted component, construct balancing gate pit.
Especially, multiple active cell can be had according to device of the present invention, wherein in potted component for each described battery is shaped a groove.Can to stack or electrolyser cells stacks by making fuel cell in this way, wherein can change battery by simply and fast mode.
When the battery of planar configuration, groove can construct in parallel with each other, thus forms the arrangement of battery stacked in the housing.
In the favourable improvement project of device according to the present invention, housing can have two opposed open side, and these open side are closed respectively by the potted component that has at least one groove.Each groove then extends into balancing gate pit from a corresponding open side.The groove of opposed potted component this can be adjacent, parallel arrange.Can stack on direction in this way, also just say the described device of remarkable shortening on the direction of the battery of adjacent layout.
Especially have multiple, particularly in the cell of fuel cell of a large amount of battery and electrolyser cells unit, these batteries can be distributed in two open side of housing, thus a part of battery extends into housing from other open side from a described open side to make a part of battery, or the groove surrounding battery extends into balancing gate pit.The symmetric construction of unit about the median plane in the direction of insertion of battery of housing can be realized thus.At this advantageously: the groove of a potted component misses one another with the half spacing of two adjacent grooves respectively relative to the groove of opposed potted component, thus side, balancing gate pit, groove that other potted component is set in intermediate cavity between two grooves of a potted component, and on the pressure side, groove that a pressure elements is set in intermediate cavity between two grooves of other pressure elements.Thus form the special compact structure form for cell of fuel cell or electrolyser cells unit.
Implement in modification first, potted component is made up of shaping insert basicly stable in shape, and its shape is changeable by active force impact.Shaping insert such as can be made up of silicone or polyurethane in injection moulding method.Do not need the auxiliary member added to carry out the shape of stabilized seal element when adopting shaping insert, thus can assemble rapidly and simply according to device of the present invention.
Preferably, the interior shape of groove can the geometric shape of battery in adaptive insertion groove.In addition, the inside dimension of groove can the geometry external dimensions of battery of adaptive insertion groove.Do not need the power loss raised just by battery insertion groove, or correspondingly can be taken out from groove by battery in the stress-free state in balancing gate pit thus.In addition the adaptation of shape has also ensured and the overvoltage in balancing gate pit has effectively been delivered on battery, because do not have air gap between cell wall and battery.
In a kind of alternative enforcement modification, potted component can be configured to fabric, and be placed in the elongated gap of the opposed sidewall of two of housing, these gaps are opened towards the open side of housing this fabric winding.In this case hold battery structure one groove.In order to make groove perpendicular to the sidewall of housing, opposed gap should be made aligned with each other, that is directly opposed.
Fabric can have the thickness between 0.5mm to 1.5mm, preferably has the thickness of 1mm, thus makes it have well flexible and elasticity, and when setting up overvoltage in balancing gate pit, this fabric can be placed on the pole plate of battery all sidedly.
Because the shape that fabric does not have auxiliary member not keep stable, so this fabric force is fixed in gap by the pin that can all correspond to the shape and size in elongated gap by shape and size in locking manner.Pin at this by the inner side of fabric pressing to gap, thus make balancing gate pit by fabric hydraulic seal ground and close airtightly.
For adopting this structural design in the device with two or more battery, can two or more opposed gap be correspondingly set in the sidewall of housing.Then in each this gap, described fabric can be fixed with pin.Preferably, the pin be placed in the gap of same sidewall can remain on a pin frame jointly.Clamping in the gap of fabric on sidewall is formed in all gaps by a unique integrating step thus simultaneously.This also additionally simplifies the assembling of device and shortens the built-up time of device.
Have in the enforcement modification of the device of multiple battery a kind of, the pole plate aligned with each other of two adjacent batteries can be connected to each other by the electric bridge of mechanical rigid.If so implement in all adjacent batteries, then form the series connection of battery thus, thus the voltage provided by battery is added respectively, or the voltage be connected in serial battery is evenly distributed on battery substantially.The negative electrode of the anode of a battery with other battery is connected at this by described bridge.
Described bridge preferably can with pole plate one integral piece construct.Like this, described bridge also can be made with identical material in Same Way step together with pole plate.Alternatively, described bridge can be the parts of two thin slices, and these two thin slices stretch in a groove, and each pole plate of two the adjacent batteries that recline.Such as manufacture and can be completed by steel plate or copper coin or also can be completed by the steel plate of copper coating, two pole plates or two thin slices and described bridge are by above-mentioned material mold pressing simultaneously and/or be embossed into a shape, wherein then the distortion of pole plate or thin slice is so carried out in bending operation, makes pole plate/thin slice finally opposed abreast.At this, a pole plate is relative to other pole plate/wafer warpage 180 °.Electric bridge can be configured as U-shaped substantially at this.Preferably, described bridge does not extend in the whole length of pole plate.Or rather, the length of described bridge is about 20-50% of pole plate length, and described bridge is arranged on centre, thus in the insert state of the pole plate be connected with described bridge, can arrange in the right side of electric bridge and/or left side from each battery out or towards the supply line of each battery.
In addition advantageously: at the base of groove, one distance piece is set.When fabric is by the overvoltage in balancing gate pit during the pole plate of the battery that reclines, this distance piece stops makes fabric sustain damage due to the sharp-pointed arris of pole plate.Kept at a distance relative to the arris of pole plate thus by the inner side of the groove of fabric structure.
In a kind of favourable improvement project of distance piece, this distance piece can be configured to elongated drip molding, its have two for hold the arris of the pole plate of a battery or the elongated slot of arris of thin slice.At this, drip molding can extend in the whole length of groove, thus the distance on each position of the base of groove at the bottom of retention groove and between the arris of pole plate.In addition, distance piece can be made up of rubber elastic material.Pole plate or thin slice are inserted in distance piece the dimensionally stable making groove.
Accompanying drawing explanation
Hereinafter set forth other features and advantages of the present invention by means of two specific embodiments and accompanying drawing.Identical or that at least function is identical parts are represented at this identical Reference numeral.
Illustrate:
Fig. 1: the exploded view implementing the cell of fuel cell of modification according to first, it has shaping insert as potted component;
Fig. 2: according to the cell of fuel cell of Fig. 1 along at the cutaway view stacking the median plane on direction, it is in assembled state;
Fig. 3: the end view of shaping insert diagram;
Fig. 4: according to the view on the cross section of the cell of fuel cell of Fig. 2;
Fig. 5: the exploded view implementing the cell of fuel cell of modification according to second, it has fabric as potted component;
Fig. 6: according to the front view of the cell of fuel cell of Fig. 5;
Fig. 7: according to the cell of fuel cell of Fig. 5 along at the cutaway view stacking the median plane on direction, it is in assembled state;
Fig. 8: according to the perspective view of cell of fuel cell in assembled state of Fig. 5.
Embodiment
Fig. 1 illustrates the cell of fuel cell 1 implementing modification according to of the present invention first, and it has a housing, and this housing comprises base plate 2 and four sidewalls 3.Housing is configured to close towards five side seals thus, and opens wide towards side 6.This open side 6 by potted component 8 hydraulic seal ground and close airtightly, sealing element is configured to the shaping insert 8 of dimensionally stable.At this, shaping insert 8 has the fringe region 15 of a flange shape outside, and this fringe region is placed on the end face 14 of sidewall 3, presses to end face 14 especially by unshowned securing member, thus make housing be formed a room 4 closed with its sidewall 3 and bottom surface and shaping insert 8, see Fig. 2.
In shaping insert 8, have five grooves, these grooves extend into enters the room 4, and the direction that is to the bottom surface 2 of housing extends.Each adaptive fuel cell 5 in its shape and inside dimension of these grooves 10, this fuel cell inserts in corresponding groove 10 in the assembled state of cell of fuel cell 1.Fuel cell 5 is configured to flat, and in a narrow side, have a base 24, and this base structure must be wider than the other parts of fuel cell.Outwards extend from described base 24s through the corresponding perforate in plate 31 for the supply joint 25 of work materials and current-collector 23.Thus, fuel cell 5 remains in position by plate 31.
Fig. 2 illustrates the fuel cell 1 in assembled state.Shaping insert 8 is arranged between housing 2,3 and plate 31 at this, and wherein fringe region 15 place of shaping insert 8 in the outside of this shaping insert is pressed on the end face 14 of sidewall 3 by plate 31.Room 4 is closed by bottom surface 2, sidewall 3 and shaping insert 8 thus.In shaping insert 8, the groove 10 of structure extends into and enters the room 4.A fuel cell 5 is held in each groove 10.The supply joint 25 of battery passes the through hole 29 of plate.Current-collector 23 is directed across the gap 30 in plate, and comes a row with the supply joint 25 of same battery 5.
Fig. 3 shown in zoomed-in view according to potted component 8 of the present invention.One-body molded on potted component 8 have five grooves 10 that are identical, flat form substantially, these grooves equidistantly and the flat region comprising flange shape fringe region from parallel with each other extend.Each groove 10 is consisted of the groove room 32 and cell wall 28 that can hold fuel cell 5, and it surrounds fuel cell 5 and insulate with the other parts of cell of fuel cell 1.Groove room draws by a dotted line.In addition, each groove 10 has a wide first groove section 11, a narrower following groove section 12 and a bottom land 13.The groove section 11 of top holds the base 24 of battery, and correspondingly, following groove section 12 holds the active part of battery 5.
Fig. 4 illustrates according to the view on the cross section passing fuel cell 5 of the cell of fuel cell 1 of Fig. 2.Fuel cell 5 respectively has two pole plates 19, and these two pole plates form a negative electrode and an anode of battery.Between these two pole plates 19, a polymer dielectric film (PEM) 27 is respectively set.In addition can a unshowned gas diffusion layers be set between film 27 and pole plate 19.Between film 27 and pole plate 19, be configured with passage, in these passages, guide work materials, that is fuel and oxidant.Pole plate 19 transfers current-collector 23 to, and this current-collector is directed across the gap 30 of plate 31.
Are being elastically deformables according to the shaping insert 8 in the enforcement modification of Fig. 1 to 4, and are being made up integratedly of silicone or polyurethane.In the wall thickness of cell wall 28 and flat site, the thickness particularly in fringe region 15 is between one and four millimeter, thus ensures the shape stability of shaping insert.The form of groove 10 impels shaping insert 8 additionally to reinforce.
Fig. 5 to 8 illustrates that of the present invention second implements modification.Cell of fuel cell 1 be according to the difference of the cell of fuel cell of Fig. 1: the potted component of closure casing is consisted of shape instability, flexible fabric 9.Fabric 9 has a width, with the width of fuel cell 5, this width adds that the outreach in order to be fixed on housing 3 by fabric 9 is consistent substantially.The length of fabric 9 is relevant with the number of fuel cell, and when there being n length to be the battery of L, the length of this fabric is greater than 2 × L × n.Like this, when there being 5 length to be the battery of about 10cm, fabric length is about 1.2m.
The opposed sidewall 3a of two of housing has gap 16, and these gaps are opened towards the open side 6 of housing.Gap 16 in sidewall 3a is directly opposed.Fabric is placed in gap 16 for 9 times annularly.Fabric 9, in these end face 14s from sidewall 3,3a, first guides the bottom surface to this gap downwards, continues there to guide to opposed inner side, and locate from bottom surface upwards to lead back clearance aperture inside this along the inner side in gap.Fabric 6 from gap 16 out there, is led through the end face of sidewall 3a, and enter adjacent gap 16.By this way, fabric goes back to annularly or snakelikely is directed across all gaps 16.
Fabric 9 is remained in gap 16 by pin 17.The length dimension of pin 17 is consistent with the inside dimension in gap 16 with width dimensions, thus fabric 9 is pressed between the inner side in pin 17 and gap 16.Pin 17 remains on pin frame 18, and described pin and this pin frame construct integratedly.Pin frame 18 has the project organization of pectination thus.Pin frame 18 prolongation exceedes the pin 17 in side portion and in the insert state of pin 17, is pressed in regularly on the end face 14 of sidewall 3a by fabric 9 outside the gap 16 in side portion.
By the inner side of fabric 9 along two opposed gaps 16 is laid and correspondingly fixed by each pin is inserted gap 16, fabric is clamped from a sidewall 3a of housing to opposed sidewall 3a when relative configurations one groove 10.
According to being also configured with five grooves in the execution mode of Fig. 5, these grooves respectively hold a fuel cell 5.As in aforesaid execution mode, fuel cell 5 respectively comprises two opposed pole plates 19, and between these two pole plates, have a film 27, this film extends into corresponding groove 10 from base 24s.Base 24 has supply joint 25 in its narrow side, and these supply joints insert or can insert feeding plate 7.Film 27 and thus also have battery 5 keep voluntarily by described feeding plate 7 and be supplied work materials.For this reason, feeding plate 7 is provided with the channel design with entrance and exit, can supply all batteries 6 or cleaning product by it.Such feeding plate 7 is called motherboard again.
Respectively have a current-collector 23 to extend from pole plate 19s along the direction of feeding plate 7, wherein, the pole plate 19 to correspondingly outer finger of the fuel cell 5 in side portion has the electric connection contact 23 of 90-degree bent.In addition, remaining pole plate 19 is electrically connected with the pole plate of adjacent cell 5 respectively by mechanical bridge 20, and the anode of one of them battery is connected with the negative electrode of other battery 5.Battery 5 is connected thus.Construct to bridge 20 one integral piece that the pole plate 19 be connected with each other is connected with by these pole plates.Bridge 20 is U-shapeds, and its width is about 1/3rd of the width of battery 5.At battery 5 transversely, bridge 20 is separately positioned on the center of pole plate 19, thus enables unshowned supply line be arranged on right side and the left side of bridge 20.
Fig. 6 shown in the exploded view of the front view of the sidewall 3a of the fluting of housing according to the arrangement of Fig. 5.
Fig. 7 illustrates the cell of fuel cell 1 according to Fig. 5 and 6, and it is in assembled state.Fabric 9 to be arranged between the sidewall 3 of feeding plate 7 and housing, 3a and the open side 6 of closure casing, constructs balancing gate pit 4 like this.Emphasize in the figure 7 and enlargedly show details A.It illustrates the region of the bottom side of groove 10, wherein on the base 21 of groove 10, lays a distance piece 22.Distance piece 22 is consisted of the elongated drip molding with two elongated slots, and the arris of the pole plate 19 of battery is contained in these two elongated slots.Distance piece 22 towards base rounding, and makes the arris of pole plate 19 and fabric 9 keep at a distance, thus when fabric 9 presses to pole plate 19 comprehensively, described arris does not damage fabric.
Fig. 8 illustrates the fuel cell according to Fig. 5 and 6, and it is in complete assembled state.Electric connection 23 stretches out from the housing of hexahedral shape, and this housing is made up of base plate, sidewall 3,3a and feeding plate 7.
In the state run of the cell of fuel cell 1 according to Fig. 1 to 8, in room 4, inject liquid.If generate overvoltage in room 4, this pressure is passed to groove 10 by described liquid, because liquid is incompressible.Apply pressure externally to groove 10 thus, therefore, the inwall of groove 10 presses to pole plate 10, and this pole plate presses to again film 27 or presses to the gas diffusion plate be arranged between film 27 and pole plate 19.
If battery 5 must be changed due to damage, only need the pressure in decontamination chamber 4.Then under stress-free state, the battery 5 of damage can leicht fallen D/A and promptly move apart from corresponding groove 10 and replaced by new battery 5.Can save time thus and finally save cost.
Reference numeral
1 device, cell of fuel cell 18 pin frame
2 base plate 19 pole plates
3 sidewall 20 bridges
3a has the base of sidewall 21 groove in gap
4 balancing gate pit 22 distance pieces, rubber molding part
5 active cells, fuel cell 23 electric connection
Open side 24 base of 6 housings
7 motherboards, feeding plate 25 supplies joint
8 potted components, shaping insert 26 is for work materials and reaction material
9 potted components, fabric passage
10 groove 27 films
Groove section 28 cell wall of 11 tops
12 following groove section 29 through holes
13 bottom land 30 gaps
End face 31 plate of 14 sidewalls
Fringe region 32 Room of 15 potted components
Joint is supplied in 16 gaps 33
17 pins
Claims (19)
1., for being electric energy by chemical energy and/or being the device (1) of chemical energy by electric energy conversion, it has a housing (2, 3, 3a), this housing opens wide at least side (6), and construct a balancing gate pit (4) in this housing, this device also has at least one electro-chemical activity battery (5) for energy conversion, and this electro-chemical activity battery is from described housing (2, 3, open side (6) 3a) extends into described housing (2, 3, 3a), wherein said open side (6) is by the plate (7 keeping and/or supply described battery (5), 31) close, it is characterized in that, at described housing (2, 3, 3a) with described plate (7, 31) potted component (8 is provided with between, 9), sealing element hydraulic seal ground and/or airtightly closed described housing (2, 3, open side (6) 3a) is to construct described balancing gate pit (4), and sealing element is made up of elastomeric material at least partly, wherein, and described potted component (8, 9) there is at least one groove extending into described balancing gate pit (4) (10), described battery (5) is laid in the cell, and the cell wall of described groove (28) is due to elastomeric material but flexibility, thus the described battery (5) that reclines when making described cell wall (28) have overvoltage in described balancing gate pit (4).
2. according to device according to claim 1 (1), it is characterized in that, described potted component (8,9) remains on the end face (14) of described housing (2,3,3a) at least partly in its fringe region (15).
3. according to the device (1) described in claim 1 or 2, it is characterized in that, described device has multiple active cell (5), and for each battery (5) is shaped a groove (10) in described potted component (8,9).
4. according to device according to claim 3 (1), it is characterized in that, described active cell (5) is configured to flat, and described groove (10) is arranged in parallel with each other.
5. according to device according to claim 1 (1), it is characterized in that, described housing (2,3,3a) has two opposed open side (6), these two open side are closed respectively by the potted component (8,9) with at least one groove (10), wherein said groove (10) extends into described balancing gate pit (4) from a described open side (6) respectively, and is parallelly disposed adjacent.
6. according to device according to claim 1 (1), it is characterized in that, described potted component (8,9) is made up of shaping insert (8) basicly stable in shape.
7. according to device according to claim 1 (1), it is characterized in that, the geometry external dimensions of the adaptive described battery (5) of inside dimension of a groove (10).
8. according to device according to claim 5 (1), it is characterized in that, described potted component (8,9) is consisted of a fabric (9), and the sidewall that two of described housing (2,3,3a) opposed (3,3a) respectively has at least one elongated gap (16), this gap is opened to the described open side (6) of described housing (2,3,3a), and wherein said fabric (9) returns be placed in annularly in described gap (16) to construct a groove (10).
9. according to device according to claim 8 (1), it is characterized in that, described fabric (9) is fixed in described gap (16) by pin (17) force closure, and described pin corresponds to elongated described gap (16) in shape at it.
10. according to device according to claim 9 (1), it is characterized in that, described sidewall (3,3a) respectively has two or more gaps (16), and the pin (17) be wherein placed in the described gap (16) of a sidewall (3,3a) remains on a pin frame (18) jointly.
11. according to device according to claim 3 (1), it is characterized in that, described battery (5) has pole plate (19), and wherein the pole plate aligned with each other of two adjacent batteries (5) is connected to each other by the electric bridge (20) of mechanical rigid.
12., according to device according to claim 11 (1), is characterized in that, described electric bridge (20) constructs with described pole plate (19) one integral piece ground.
13. according to device according to claim 11 (1), it is characterized in that, described bridge (20) is the parts of two thin slices, this thin slice reaches in a groove (10) respectively, and the corresponding pole plate (19) of two the adjacent batteries (5) that recline.
14., according to device according to claim 13 (1), is characterized in that, the base (21) of a groove (10) lays a distance piece (22).
15. according to device according to claim 14 (1), it is characterized in that, described distance piece (22) is an elongated drip molding, and it has two elongated slots for holding the arris of pole plate (19) or the arris for holding described thin slice of a battery (5).
16., according to device according to claim 1 (1), is characterized in that, described potted component (8,9) is made up of the polyurethane of silicone or flexibility.
17., according to device according to claim 8 (1), is characterized in that, described fabric has the thickness between 0.5mm to 2.5mm.
18., according to device according to claim 17 (1), is characterized in that, described fabric has the thickness between 1mm to 1.5mm.
19. according to device according to claim 2 (1), it is characterized in that, described potted component (8,9) is fixed on the end face (14) of described housing (2,3,3a) by least one securing member at least partly in its fringe region (15).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009057494A DE102009057494A1 (en) | 2009-12-10 | 2009-12-10 | Device for energy conversion, in particular fuel cell stack or Elektrolyseurstack |
| DE102009057494.8 | 2009-12-10 | ||
| PCT/EP2010/007384 WO2011069625A1 (en) | 2009-12-10 | 2010-12-06 | Energy conversion apparatus, in particular fuel cell stack or electrolyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102754262A CN102754262A (en) | 2012-10-24 |
| CN102754262B true CN102754262B (en) | 2015-01-21 |
Family
ID=43608871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080063055.7A Active CN102754262B (en) | 2009-12-10 | 2010-12-06 | Energy conversion apparatus, in particular fuel cell stack or electrolyzer |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9178245B2 (en) |
| EP (1) | EP2510571B1 (en) |
| JP (1) | JP5615379B2 (en) |
| CN (1) | CN102754262B (en) |
| CA (1) | CA2783101C (en) |
| DE (1) | DE102009057494A1 (en) |
| WO (1) | WO2011069625A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010051748A1 (en) * | 2010-11-19 | 2012-05-24 | Gräbener Maschinentechnik GmbH & Co. KG | Fuel cell assembly for fuel cell system, has flexible pressure transmission elements that are arranged between adjacent fuel cells, where pressure plates are provided at sides of pressure transmission elements |
| DE102012000755A1 (en) | 2012-01-18 | 2013-07-18 | Propuls Gmbh | Device for energy conversion with reversible energy storage |
| DE102012018243A1 (en) | 2012-09-17 | 2014-03-20 | Propuls Gmbh | Method and system for operating an electrolyzer |
| DE102014112626A1 (en) | 2014-09-02 | 2016-03-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Sealing element for sealing battery cells of a traction battery, molded body for producing the sealing element and method for producing the sealing element |
| DE102014112596A1 (en) * | 2014-09-02 | 2016-03-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cell seal, battery module, method for mounting a battery module and battery or accumulator |
| DE102016007739A1 (en) | 2016-06-27 | 2017-12-28 | Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen | Device for energy conversion, in particular fuel cell or electrolyzer |
| USD852244S1 (en) * | 2017-07-04 | 2019-06-25 | Tae Young E&T Co., Ltd. | Fluid guiding device for electrolyzer |
| CN109449472B (en) * | 2018-10-16 | 2021-08-31 | 深圳职业技术学院 | Methanol fuel cell shell and preparation method thereof |
| CN110513479B (en) * | 2019-07-22 | 2021-09-03 | 惠州市臻鼎环保科技有限公司 | Electrolytic tank sealing device and manufacturing method thereof |
| DE102021000452A1 (en) | 2021-01-29 | 2022-08-04 | Voss Automotive Gmbh | Energy storage cell module, module frame for accommodating such an energy storage cell module and module frame stack, comprising a number of such module frames |
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| EP0936689A1 (en) * | 1998-02-17 | 1999-08-18 | Honda Giken Kogyo Kabushiki Kaisha | Arrangement for tightening a stack of fuel cell elements |
| US6468682B1 (en) * | 2000-05-17 | 2002-10-22 | Avista Laboratories, Inc. | Ion exchange membrane fuel cell |
| CN1717829A (en) * | 2003-01-10 | 2006-01-04 | 吉恩塞尔公司 | Fuel cell end plate |
| CN1879248A (en) * | 2003-11-14 | 2006-12-13 | 尼拉国际股份公司 | A gasket, a bipolar battery and a method for manufacturing a bipolar battery with such a gasket |
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| DE4324907A1 (en) * | 1993-07-24 | 1995-01-26 | Dornier Gmbh | Interconnection of fuel cells |
| KR100413397B1 (en) * | 1999-05-28 | 2004-01-03 | 마쯔시다덴기산교 가부시키가이샤 | Polymer electrolyte fuel cell and its usage |
| JP3504898B2 (en) * | 1999-11-16 | 2004-03-08 | 三菱重工業株式会社 | Polymer electrolyte fuel cell |
| DE10003528C2 (en) * | 2000-01-27 | 2002-08-01 | Siemens Ag | Flexible intermediate element and its use |
| US6630262B2 (en) * | 2001-03-09 | 2003-10-07 | De-Qian Yang | Metal-gas cell battery with soft pocket |
| TW567626B (en) * | 2001-09-26 | 2003-12-21 | Evionyx Inc | Rechargeable and refuelable metal air electrochemical cell |
| DE10323883A1 (en) * | 2003-05-26 | 2004-12-30 | Siemens Ag | Electrochemical battery |
| KR100683786B1 (en) * | 2005-06-13 | 2007-02-20 | 삼성에스디아이 주식회사 | Direct liquid feed fuel cell stack |
| KR100790680B1 (en) * | 2007-01-16 | 2008-01-02 | 삼성전기주식회사 | Hydrogen generator |
-
2009
- 2009-12-10 DE DE102009057494A patent/DE102009057494A1/en not_active Withdrawn
-
2010
- 2010-12-06 JP JP2012542388A patent/JP5615379B2/en active Active
- 2010-12-06 US US13/512,391 patent/US9178245B2/en active Active
- 2010-12-06 CA CA2783101A patent/CA2783101C/en active Active
- 2010-12-06 CN CN201080063055.7A patent/CN102754262B/en active Active
- 2010-12-06 EP EP10788257.3A patent/EP2510571B1/en active Active
- 2010-12-06 WO PCT/EP2010/007384 patent/WO2011069625A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0936689A1 (en) * | 1998-02-17 | 1999-08-18 | Honda Giken Kogyo Kabushiki Kaisha | Arrangement for tightening a stack of fuel cell elements |
| US6468682B1 (en) * | 2000-05-17 | 2002-10-22 | Avista Laboratories, Inc. | Ion exchange membrane fuel cell |
| CN1717829A (en) * | 2003-01-10 | 2006-01-04 | 吉恩塞尔公司 | Fuel cell end plate |
| CN1879248A (en) * | 2003-11-14 | 2006-12-13 | 尼拉国际股份公司 | A gasket, a bipolar battery and a method for manufacturing a bipolar battery with such a gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5615379B2 (en) | 2014-10-29 |
| US20120237846A1 (en) | 2012-09-20 |
| JP2013513908A (en) | 2013-04-22 |
| US9178245B2 (en) | 2015-11-03 |
| CA2783101C (en) | 2019-05-07 |
| EP2510571A1 (en) | 2012-10-17 |
| CA2783101A1 (en) | 2011-06-16 |
| WO2011069625A1 (en) | 2011-06-16 |
| EP2510571B1 (en) | 2013-10-02 |
| CN102754262A (en) | 2012-10-24 |
| DE102009057494A1 (en) | 2011-06-16 |
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